363-205-401
Conversions: NTP-011
Issue 7, March 1997
Page 3 of 4
DO ITEMS BELOW IN ORDER LISTED
FOR DETAILS, GO TO
8.
If equipping the CD shelf, install an AUA105 or AUA109 trans-
mit/receive unit (TRU) in CD shelf. Verify that the TRU FAIL LED
lights and goes off.
In about 25 seconds if the system is not optioned for protection
switching, all alarms clear. Otherwise, only the MN and NE LEDs
on the ADU remain lighted.
9.
If the FPB system had protection switching, install AUA73( ) LSU
removed in converting to FP303.
In about 10 seconds, all alarms clear.
10. Perform RT LED test.
11. Remove the ADU and if equipping the AB shelf, set switch S1-3 to
ABI. If equipping the CD shelf set switch S1-4 to CDI. Reinstall the
ADU.
The MJ LED on the ADU, DIGROUP LEDs (for those DS1s
equipped) on the BCU, and CLF LEDs on the LIUs light.
12. Wait for the switch personnel to restore to service the IFACs
associated with the FPB RT.
As each digroup IFACs is restored to service, the DIGROUP LED
on the BCU and the CLF on the LIU associated with the IFACs go
off. An MN and FE on the ADU and a CLF on the LIU-P remains
lighted until the protection IFACs is restored.
13. Have the switch personnel verify that the IFACs are provisioned
for B8ZS line coding (the current LIU line code setting).
14.
NOTE:
This step verifies correct end-to-end operation.
Perform channel tests.
15. Update office records.